Geoege b



(No Model.)

G. R. FULLER.

TENDON FOR ARTIFICIAL LIMBS.

Patented Apr. 19, 188.7.

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UNITED STATES PATENT OFFICE.

GEORGE R. FULLER, OF ROCHESTER, NEV YORK.

TENDON FOR ARTIFIC IAL LIMBS.

SPECIFICATION forming part of Letters Patent No. 361,405, dated April19, 1887.

Application filed February 23, 1887. Serial No. 228,493. (No model.)

T (1% whom it may concern:

Be it known that I, GEORGE RrFULLER, of Rochester, in the county ofMonroe and State of New York, have invented a new and useful Improvementin Tendons for Artificial Limbs, which improvement is fully set forth inthe following specification, and shown in the accompanying drawings.

The object of my invention is to produce an improved tendon forartificial limbs, which can be conveniently adjusted as to length by thewearer without removing it or any of the parts and without taking theleg off, the invention being hereinafter fully described, and moreparticularly pointed out in the claim.

Referring to the drawings, Figure 1 is a side elevation at one endof.the tendon, showing the form of the divided eyebolt, a part of thecord being broken away and sectioned at the loop; Fig. 2, a view of theparts seen in the direction indicated by arrow yin Fig. 1, one half ofthe divided bolt being shown by dotted lines swung away from the otherhalf, the fig are also showing the bolt and parts at the other end ofthe tendon, the latter having a portion at the middle broken out tocondense it as to length; Fig. 3, a View of the smaller bolt, seen asindicated by arrow 2 in Fig. 2, the cord being sectioned at the loop;Fig. 4, a view of the divided bolt, seen as indicated by arrow 00 inFig. 1; Fig. 5, a view of the smaller bolt, seen as indicated by arrow yin Fig. 2; and Fig. 6, a view of a portion of a leg, serving to show anapplication of the tendon.

Referring to the parts, A represents the divided screw-bolt, B the cord,D the smaller eyebolt, and E and F the screw-nuts for the respectivebolts.

b and care rigid bars in the leg, respectively above and below theknee-joint, to which the tendon is attached, the smaller bolt beingomitted.

The bolt A is divided longitudinally along its axis upon the line sintotwo equal and similar parts, a a, the plane of the division coincidingwith the axis of the eye (I, made to receive the loop 6 of the cord.

f is a pivot for the halves of the bolt to turn upon, its axis beingperpendicular to the plane upon which said bolt is divided.

The loop 6 is made continuous, and is inserted in the eye cl by swingingthe halves of the bolt A apart, as shown in Fig. 2. The part g of thecord is first passed through the eye it of the bolt D and the endbrought up against the body of the cord and made fast by a strongthread, it.

As shown in Fig. 6, the bolt A isplaced at the bottom and secured bynuts E to a rigid bar, 0, in the leg, the bolt D in this case beingomitted, the loop 9 being passed over a rigid bar, 1), above the knee-joint.

It is immaterial whether the nut E is made hexagonal in form, as shownin Fig. 4, or circular and with pin-holes, as shown in Fig. 6.

The cord B is made of buckskin or other firm inelastic material.

The nut F is preferably made with a disk, k, and a star-shaped partformed with projections ito fit a hexagonal socket-wrench, (indicated bydotted lines in Fig. 5,) the portions between, at Z, being cut away forthe sake of lightness.

What I claim as my invention is In an artificial leg, the combination,with a cord formed with a loop at each end, of a bolt or holder insertedin one of said loops, a divided threaded bolt formed with an eye toreceive the other of said loops, a pivot for the parts of said dividedbolt, and a screw-nut for the latter, substantially as set forth.

I GEO. R. FULLER.

\Vitnesses:

E. B. WHITMORE, M. L. MoDERMoTT.

